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Re:IMF working paper suggests using browsing history in cred... by ravel-bar-foo on Tuesday August 24, 2021 @09:52AM (#28288840)
In 2018 there were announcements on Chinese trains that smoking in the bathrooms would affect your social credit score. In Mandarin and in English.

I don't know how it is implemented, but I would be surprised if it wasn't.

Re:IMF working paper suggests using browsing history in cred... by yorwba on Tuesday August 24, 2021 @10:20AM (#28289204)
If you get caught smoking on a train, they can put you on a list of people banned from buying tickets. Very simple; no credit scoring required.

Presumably being on such a blacklist will actually influence individual credit scores once they get rolled out nationwide, but unless I somehow missed the announcement, that hasn't happened yet.